Gas prices down 13 cents in past week

DEARBORN, Mich. (AP) - AAA Michigan says gasoline prices are down about 13 cents per gallon during the past week to a statewide average of $3.20.

The auto club says Monday the average is about 20 cents per gallon higher than last year at this time.

Of the cities it surveys, AAA Michigan says the cheapest price for self-serve unleaded fuel is in the Saginaw and Bay City areas, where it's $3.10 a gallon. The highest average can be found in the Marquette area at $3.30.